How cold does it have to be to be sent home from work?

From wearing your coat indoors to hugging a hot water bottle at your desk, getting your work done in a cold office is not for the faint-hearted.

Temperatures across the UK have plummeted this week, with some parts of England experiencing the “coldest night of the season” on Sunday.

In Scotland, thousands of homes have been left without power in the wake of Storm Arwen, which has blanketed towns in snow.

As a result, a number of schools have closed their doors to students and staff.

The extreme weather has also disrupted train travel, with ScotRail confirming that replacement buses will operate between Dundee and Aberdeen as engineers work to clear the damage to tracks caused by the storm.

But how cold does it have to be to be sent home from work? Here’s everything you need to know:

You may be disappointed to learn that there is no specific law outlining the minimum or maximum temperature an office should exceed.

This means that, under the law, you cannot go home if your workplace is “too cold”.

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That said, the Workplace (Health, Safety and Welfare) Regulations 1992 Approved Code of Practice state: “During working hours, the temperature in all workplaces inside buildings shall be reasonable.”

The guidelines explain that a workplace should be at least 16C and at least 13C if a person’s work involves “rigorous physical effort”.

According to a survey in 2015, 53 per cent of employees say they are less productive when working in an office that is too cold.

Meanwhile, 71 per cent say they are less productive when working in an office that is too warm.

The government regulations don’t specify a maximum temperature, however, as some employees work in hot workplaces. According to the guidelines, work can continue “if the necessary precautions are taken”.

According to the Advisory, Conciliation and Arbitration Service (ACAS), “thermal comfort” is the sensation of being too hot or too cold. Environmental factors can influence someone’s thermal comfort, which can include:

It’s important to note that air temperature alone is not an accurate indicator of “thermal comfort” and should be used with other environmental and personal factors.

ACAS guidelines advises employees to raise any temperature issues with their boss or HR department in the first instance.

Employers can assess whether an office is too cold by carrying out a Thermal Comfort Risk Assessment.

If your workplace temperature drops below what is deemed “reasonable”, you are required by law to take extra measures to raise that temperature.

The Advisory, Conciliation and Arbitration Service (ACAS) explains that there is no automatic legal right for a worker to be paid for working time they have missed due to travel disruption or bad weather.

However, if employer-provided transport is cancelled due to bad weather and an employee is "ready, willing and available to work", workers should be paid, states ACAS.

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Employees should notify their employees as soon as possible if they are absent or late.

ACAS says that in an emergency situation involving a dependent, anyone with employee status has the right to take unpaid time off.

This includes the following situations:

An employee should notify their employer of the absence and the length of time they envisage they’ll have to take off in leave. The pair should then agree that the time could be take off as annual leave so that the employee doesn’t miss out on pay.